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(No Model.) J BAUM RIVETIING MACHINE.

' N0. 486,071. Patented Nov. 15, 1892.

i a I r///J/////Aa I U ITED STATES PATENT OFFICE.

JACOB BAUM, OF CINCINNATI, OHIO, ASSIGNOR TO THE VICTOR SAFE AND LOCKCOMPANY, OF SAME PLACE.

RIVETING- SPECIFICATION forming part of Letters Patent No. 486,071,dated November 15, 1892.

Application filed June 10, 1892. Serial No. 436,222. (No model.)

To all whom it may concern.-

Be it known that I, J AOOB BAUM, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Riveting-Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, reference being had to the annexeddrawings, which IO form part of this specification.

My invention comprises a table having certain attachments wherewith theact of riveting angle-irons to the margins of metal plates or sheets isgreatly facilitated. This table is r 5 provided with any suitable numberof parallel longitudinal grooves to admit plates of different widths andhas a series of laterally-adjustable clamp-levers for holding theangleirons firmly against said plates, a pair of vertically-acting andlaterally-shiftable anglebars being applied to one end of said table.These anvil-bars support the rivets while they are being headed up, theplate being so advanced by the operator as to bring the proper holes inline with said bars, as hereinafter more fully described.

In the annexed drawings, Figure l is a plan of my riveting-table, aportion of the same being broken away and the clamp-levers being seen-in their open position. Fig. 2 is another plan of a portion of saidtable,anarrow plate and a pair of angle-irons being placed thereon andthe clamp-levers being closed against these angle-irons. Fig. 3 is anend elevation of the table, the anvil-bars being elevated. Figs. 4 and 5are enlarged sections of certain details.

A represents a table of any convenient length and width, and B B B B areparallel longitudinal grooves in the upper surface of the same, whichgrooves are of such a capacity as to admit those angle-irons ordinarilyused in the manufacture of safes and similar metallic structures.Secured across this table are guides C C C 0', each of which has groovesc c c c in line with the groovesB B B B. a are transverse grooves on thesides of these guides, which grooves permit a ready adjustment of thelaterallyshiftable slides D D D, which are applied to said guides in themanner shown in Fig. 5,

screwed cl (1 serving to hold said slides to any specific adjustment. EE E are similar slides applied to the opposite ends of said guldes, ande e c are the set-screws of said slides.

f f f are pivots wherewith clam p-levers F F F are pivoted to the slidesD D"D,andf' is a rod connecting the outer ends of said levers, the innerends thereof being rounded,so as to have somewhat of a cam action whenbrought into service. Lever F is prolonged at f to serve as a handle.

G G G qg g representa similar arrangement of pivots, levers, rods, andhandle applied to the other set of slides E E E.

Guide C has an undercut groove 0, as represented in Fig. 4, for theengagement of another pair of slides H H, (seen in Fig. 3,) which slidesare held in place by set-screws. 7c Furthermore, these slides'areprovided with tubular housings I 1, within which reciprocate anvil-barsJ J, the lower ends of the latter being coupled to treadles K K, collarsj and springsj serving to retain said bars in 7 their normalor depressedpositions. Treadles K K are hung on bearings Z 1, that may be swiveledto blocks L L, capable of traversing a track M, secured to the floor.

N is a plate or sheet of metal, and O O are angle-irons to be riveted toits opposite margins. Normally the clamp-levers F F F G G G are swungaround to the position seen in Fig. 1 and the anvil-bars J J of themachine are forced down by the springsjfi, so as to leave the top of thetable in a proper condition to receive the work, which is assumed to bea plate N, to whose opposite margins angle-irons O O are to be secured.This plate is here shown of the right width to extend from the groove Bto the groove 8', and after being placed upon the table, with its leftend near the guide C, the angle-irons are then applied to the edges ofsaid plate, the vertical webs of said irons fitting within said grooves.5 The slides D D D are then properly advanced to render their levers F FF the most effective and are secured in place by tightening theirsetscrews d d d, after which act the plate and angle-irons are advancedby hand until the first set of holes are in line with the anvil-bars JJ. A rivet being then set upon each of! the bars and treadles K K"depressed, said rivets are forced up through the coincident holes in theplate and angleirons. Handles f g are now swung around to the positionseen in Fig. 2, the result being to bring the inner ends of levers F F Fand G G G" in contact with the angle-irons, and thus clamp them firmlyagainst the edge of the plate. Two attendants of the machine then headup the rivets, the anvil-bars aitording a firm support for thisoperation, and as soon as the riveting is finished pressure is removedfrom said treadles and the bars drop. The clam p-levers are again thrownopen, the plate and angle-irons drawn forward by hand until the secondset of holes are in line with the anvil-bars, and then theabove-described operations are repeated, and so on until each of saidangle-irons is riveted to the sheet. Fig. 2 shows three rivets securedto each angle-iron. If the plate is comparatively short, four leverswill suffice to hold the angle-irons in place, while a longer plate canbe better managed with sixlevers. Theguide O' (seen at the right end ofthe table in Fig.1) is used only when unusually-long plates are to beriveted, the grooves in said guides serving, like the grooves B B B" B,to confine the an.- gle-irons to a proper path. In the drawings onlyfour of these grooves are shown; but the invention is not limited to anyspecial number nor to having them parallel with each other, as themachine will operate with plates that taper from one end to the other.Neither is the invention restricted to the number of clamp-levers nor tothe special devices for raising and lowering the anvil-bars, as they maybe operated by cams, &c., if desired.

I claim as my invention-- 1. The combinatiomin a riveting-machine, of atable provided with a series of grooves, a vertically-acting anvil-bar,and a set of guides, which latter carry shiftable slides furnished withclamp-levers, for the purpose described.

2. The combination,in a riveting-machine, of a table provided with aseries of longitudinal grooves and transverse guides, which latter carryshiftable slidesfurnished withclamplevers, a pair of vertically-actinganvil-bars being applied to said table and operated by treadleconnections, for the purpose described.

3. The cornbination,in a riveting-machine, of a table provided withlongitudinal grooves and fixed transverse guides, which latter carryshiftable slides furnished with clamp-levers, a pair ofvertically-reciprocating and laterally-adjustable an vil-bars beingapplied to said table, for the purpose described.

4. The combination, in a riveting-machine, of the table A, provided withlongitudinal grooves B B B 15, transverse guides C O C" 0', grooved at cc c c",shiftable slides D D D" E E E", applied in said guides,

coupled clamp-levers F F F" G G G, pivoted to said slides,laterally-shiftable slides H H, fitted to the guide 0, tubular housingsI I, carried by these slides H H, anvil-bars J J, traversing saidhousings, springs j j for depressing said anvil-bars, and treadles K Kfor elevating them, all as herein described.

In testimony whereof I affix my signature in presence of two witnesses.

JACOB BAUM.

\Vitnesses:

JAMES H. LAYMAN, CHAS. T. I'IAIGHT.

It is hereby certified that in Letters Patent N 0. 486,071, grantedNovember 15, 1892 upon the applicati0n of Jacob Baum, of Cincinnati,Ohio, for an improvement in Riveting'Machines, an error appears in theprinted specification requiring correction, as follows: In line 20, page1, the word angle should read anvil; and that said Letters Patent shouldbe read With this correction therein that the same may conform to therecord of the case in the Patent Office. I

Signed, counter-signed, and sealed this 22d day of November, A. D. 1892.

[SEAL.] CYRUS BUssEY,

Assistant Secretary of the Interior. Oountersigned:

W; E. SIMONDS,

Commissioner of Patents.

